Silhouette V6-191 3.1L (1990)
Wheel Bearing: Technical Service Bulletins
Rear Wheel Bearing & Hub Attaching Bolt - New Torque
NUMBER: 93-U-36A
CORP.REF.NO: 333401R
DATE: July 1993
SECTION: 3D
SUBJECT:
REAR WHEEL HUB AND BEARING ASSEMBLY ATTACHING BOLT-TECHNICAL INFORMATION
MODELS/YEARS:
1990-93 SILHOUETTE
This bulletin serves to cancel and supersede torque specifications for the rear wheel hub and bearing assembly attaching bolts found in Section 3D of the
1990-93 Silhouette Service Manuals. It also supersedes the torque specifications given in Service Manual Update 93-U-36. Please discard Service
Manual Update Bulletin 93-U-36. The bolts attach the rear hub and bearing assembly to the rear axle (four on each side).
Rear hub and wheel bearing assembly attaching bolts for all Silhouette's should be torqued using the following guidelines:
^
Vehicles manufactured from model year 1990 through 1992 require a torque specification of 63 N-m (46 lb.ft.)
^
Vehicles manufactured in 1993 model year and beyond require a torque specification of 82 N-m (61 lb.ft.)
The change is a result of the required torque distinction between unpainted and painted bearing surfaces and not the type of bolt being used.
The 1990-93 Silhouette Service Manual For Section 3D should be updated at the following pages:
1990
3D-6, 3D-7
1991
3D-6, 3D-7
1992
3D-6, 3D-7
1993
3D-5, 3D-7